TrueNAS 11.3-STABLE has reached its End of Life and is no longer receiving security updates. The TrueNAS 12.0 release announcment can be found here: https://www.truenas.com/docs/hub/intro/release-notes/tn-12_0-release/

Please schedule a time to upgrade to TrueNAS 12.0-U1, if assistance is required please contact the iXsystems Support Team.